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Test ID:1.3.6.1.4.1.25623.1.0.51413
Category:Conectiva Local Security Checks
Title:Conectiva Security Advisory CLA-2003:629
Summary:Conectiva Security Advisory CLA-2003:629
Description:
The remote host is missing updates announced in
advisory CLA-2003:629.

Tcpdump is a command-line tool for monitoring network traffic.

This update fixes several vulnerabilities found in tcpdump:

- Infinite loop vulnerability[1] when parsing ISAKMP packets.
A remote atacker can cause tcpdump to enter an infinite loop by
injecting specially crafted ISAKMP packets (UDP port 500) in the
network being monitored by it. This vulnerability was discovered by
Andrew Griffiths and iDEFENSE Labs and has the name CVE-2003-0108
assigned[2] by the Common Vulnerabilities and Exposures (CVE)
project.

- Infinite loop vulnerability when parsing BGP packets.
This vulnerability can be exploited in a similar way of the previous
one, but using BGP packets. It was discovered by the tcpdump
developers.

- Buffer overflow when parsing NFS traffic.
tcpdump fails to check the boundaries of some buffers when parsing
NFS traffic. A remote atacker can exploit this vulnerability to crash
the tcpdump process or to potentially execute arbitrary code with the
privileges of the user running it (tcpdump is usually run by the root
user). This vulnerability was discovered by the tcpdump developers.

Even though libpcap is not affected by these vulnerabilities, new
packages are being provided for Conectiva Linux 6.0 and 7.0 because
they are generated together with tcpdump from the same SRPM package.


Solution:
The apt tool can be used to perform RPM package upgrades
by running 'apt-get update' followed by 'apt-get upgrade'

http://www.idefense.com/advisory/02.27.03.txt
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0108
http://www.tcpdump.org/tcpdump-changes.txt
http://www.securityspace.com/smysecure/catid.html?in=CLA-2003:629
http://distro.conectiva.com.br/atualizacoes/index.php?id=a&anuncio=002003

Risk factor : Medium
Cross-Ref: BugTraq ID: 6974
Common Vulnerability Exposure (CVE) ID: CVE-2003-0108
Bugtraq: 20030227 iDEFENSE Security Advisory 02.27.03: TCPDUMP Denial of Service Vulnerability in ISAKMP Packet Parsin (Google Search)
http://marc.theaimsgroup.com/?l=bugtraq&m=104637420104189&w=2
http://www.idefense.com/advisory/02.27.03.txt
Conectiva Linux advisory: CLA-2003:629
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000629
Debian Security Information: DSA-255 (Google Search)
http://www.debian.org/security/2003/dsa-255
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2003:027
http://www.redhat.com/support/errata/RHSA-2003-032.html
http://www.redhat.com/support/errata/RHSA-2003-085.html
http://www.redhat.com/support/errata/RHSA-2003-214.html
SuSE Security Announcement: SuSE-SA:2003:0015 (Google Search)
http://www.novell.com/linux/security/advisories/2003_015_tcpdump.html
Bugtraq: 20030304 [OpenPKG-SA-2003.014] OpenPKG Security Advisory (tcpdump) (Google Search)
http://marc.theaimsgroup.com/?l=bugtraq&m=104678787109030&w=2
http://www.securityfocus.com/bid/6974
http://www.iss.net/security_center/static/11434.php
CopyrightCopyright (c) 2005 E-Soft Inc. http://www.securityspace.com

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